Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Richard N. Pierson, MD

Individual provider Surgery Physician · NPI 1235152398

Dr. Richard N. Pierson, MD is a Cardiac Surgery in Baltimore, Maryland. Graduated from Columbia University College of Physicians and Surgeons in 1983, 43 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
43
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
MD
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

22 S Greene St
Baltimore, MD 21201-1544
Phone: (410) 328-6897
Fax: (410) 328-2109
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence D0059304 (MD)

Record details

NPI number1235152398
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 26, 2006
Last updated in NPPESOctober 5, 2010

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIAC SURGERY
Also practisesCRITICAL CARE (INTENSIVISTS), GENERAL SURGERY, THORACIC SURGERY
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1983 (43 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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